Thin copper foil with carrier foil
MicroThin™ series

With peelable carrier foil
for both thinness and ease of handling

The MicroThin™ series is a two-layer copper foil consisting of a firm 18µm carrier foil and an ultra-thin copper foil of 5µm or less attached with a release.
By peeling off only the carrier foil after laminating the entire carrier foil to a resin film or the like, it is possible to use the ultra-thin copper foil while maintaining handling properties.

General copper foil

MicroThin™

MicroThin™

Technology & Features

Over 95% world's market share
as thin copper foil with carrier foil.

High thin foil productivity

Release Strength Control

The release strength (adhesion strength between thin copper foil and carrier foil) is controlled to be uniform everywhere on the huge copper foil roll, which is more than one meter wide and several thousand meters long.

Carrier foil/thin copper foil interface
release strength distribution